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Re: How to uniquely identify audio device
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Re: How to uniquely identify audio device


  • Subject: Re: How to uniquely identify audio device
  • From: Jeff Moore <email@hidden>
  • Date: Thu, 20 Dec 2007 11:47:50 -0800

Odd. My version of <CoreAudio/AudioHardware.h> says:
@constant kAudioDevicePropertyTransportType
A UInt32 whose value indicates how the AudioDevice is connected to the CPU.
Constants for some of the values for this property can be found in
<IOKit/audio/IOAudioTypes.h>.



On Dec 20, 2007, at 11:14 AM, Lorenzo Thurman wrote:

Shaun Wexler wrote:
On Dec 20, 2007, at 10:28 AM, Lorenzo Thurman wrote:
I have just one followup question on this topic:
How do I identify which device is the built-in audio Apple hardware? There don't appear to be any methods that would tell me that a particular piece of hardware is the built-in hardware. By the way, I'm looking at this page here as it seems most relevant to what I'm doing:
http://tinyurl.com/3d4s6n
Is there somewhere else I need to look? Is there sample code that might help?
TIA
Examine the device's Transport Type.
Thanks for the reply. I'll look into this later, but I guess I found one of those occasional documentation bugs:

"kAudioDevicePropertyTransportType
A UInt32 whose value indicates how the AudioDevice is connected to the CPU. Constants for some of the values for this property can be found in ."


I guess I can find the constants for the property somewhere in one of the header files.



--

Jeff Moore
Core Audio
Apple


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References: 
 >How to uniquely identify audio device (From: Lorenzo Thurman <email@hidden>)
 >Re: How to uniquely identify audio device (From: "B.J. Buchalter" <email@hidden>)
 >Re: How to uniquely identify audio device (From: Lorenzo Thurman <email@hidden>)
 >Re: How to uniquely identify audio device (From: Shaun Wexler <email@hidden>)
 >Re: How to uniquely identify audio device (From: Lorenzo Thurman <email@hidden>)

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